Saw set



De. 1940. w. R. wlLLxAMs, SR'

SAW SET Filed Dec. 9, 1938 2 Sheets-Sheet l MMMJEE@ INVENTOR BY mgm@ATTORNEYS Dec. 17, 1940 W 'R WILLIAMS, 5R 2,225,141

SAW SET Filed Dec. 9, 1938 2 S'aets-Sheet 2 INVENTOR ATTO R N EYSPatented Dec. 17, 1940 PATENT OFFICE` SAW SET Walter R. Williams, Sr.,Danville, Ga. Application December 9, 1938, Serial No. 244,836

1 Claim.

My invention relates to improvements in saw sets.

An important object of my invention is to provide a saw set that isadapted to clamp the saw blade in position and to set the various teeththereof at the proper angle.

Another object of my invention is to provide a saw `set that isadjustable to accommodate varying sizes of saws.

Yet another object of my invention is to provide a saw set that issimple in construction, efficient in operation and inexpensive tomanufacture.

Other objects and advantages of my invention will be apparent during thecourse of the following description.

In the accompanying drawings, forming a part of this specification, andin which like numerals are employed to designate like parts throughoutthe same,

Figure 1 is a side elevation, partly in section, of a device embodyingmy invention, and illustrating the same in operative position,

Figure 2 is a side elevation thereof,

Figure 3 is an edgeWise elevation of my device,

Figure 4 is an edgewise elevation of the body portion thereof,

Figure 5 is a vertical longitudinal sectional view taken on the line 5-5of Figure 2,

Figure 6 is a fragmentary View illustrating the saw clamping meansembodied by my invention,

Figure 7 is a transverse sectional view taken on the line 1-1 of Figure6,

Figure 8 is a side elevation, partly in section, of another form of myinvention,

Figure 9 is a side elevation of the same and showing its associationwith a saw,

, Figure 10 is a fragmentary edgewise elevation of the same,

Figure 11 is a transverse .sectional view taken on the line of Figure 8,

Figure 12 is a transverse sectional view taken on the line |2-|2 ofFigure 10,

Figure 13 is a fragmentary side elevationof still another form of myinvention, and Figure 14 is a transverse sectional view taken on theline lll-I4 of Figurev 13.

While I have shown preferred embodiments of my invention in thedrawings, it will be understood that various modifications arecontemplated withln the scope of my invention and I do not intend thatmy invention shall be limited to the particular forms shown.

Referring to Figures 1 to 7, inclusive, of the drawings, the numeraldesignates the body portion having a saw-receiving slot 2|. The headportion is formed with flat spaced side walls 22 having arcuated arms 23extending upwardly therefrom and conjoined thereabove in a circular web24. The body portion is conjoined at the ends 25 by the Webs 25. The web24 is provided centrally thereof with a slot 26 through which extends ascrew or bolt 21A carry-l ing yan anvil 28 interiorly of the saidsaw-receiving slot 2 I. The anvil 28 has a beveled edge 28 whereby thesaw tooth is given the proper set. The bolt 21 is provided with a head2B 4which is positioned in a countersunk opening in the anvil 28 inamanner to be flush with the inner face of the said anvil. The wingednut 30 15 is carried by the bolt 21 exteriorly of the web 24 to permitthe adjustment of the said anvil with respect to the saw blade A.Pivoted between the side walls 22 is a pair of levers 3| and 32, whichcommunicate at their inner ends with the said20 saw-receiving slot 2|.The lever 3| terminates in a cam face 33, which operates in conjunctionwith and in a direction normal to the beveled face 28 of the anvil 28,as best illustrated in Figure l of the drawings. rninates in atransverse slot 34 in which is pivotally mounted a saw clamping member35. Seated in the recess 31 is a spring 33 which bears on the undersurface of the saw clamping mem-l ber to permit it to be yieldablyadjustable`30 with the saw blade and to prevent the saw clamping memberfrom crimping or substantially deforming the blade. As shown in Figure2, the saw clamping member is normally closer to the flat holding faceof the anvil than thei35 cam face 33 is to the bevel working facethereof when the levers are in the open position. The levers 3| and 32are provided with Shanks 38 projecting from recesses 39 in Which isseated,l the spring 40.

The operation of my device is as follows:

The saw blade A is inserted Within the sawreceivingi slot 2| of the headportion and the anvil 28 is properly adjusted Within the slot 26 toproperly coact with the lcam 33 of the lever :'45 3|. The cam face 33 isshaped in a manner to contact the tooth of the saw evenly and firmly anddoes not press upon the beveled or sharpened edge of the tooth in amanner to dull or break the same. When the levers 3| and 32 are 50brought together in operative position, the sawclamping member 35 willfirst engage the plane surface of' the saw blade and firmly hold thesame against displacement before the cam face 3 3 of the lever 3|engages the beveled face of the 5,5

The lever 32 ter-:25

anvil 28 to properly Set the tooth of the saw. The cams and 33 movealong lines normal to the flat and the beveled faces of the anvil,respectively, to evenly and iirmly grip their respective portion of thesaw blade. The spring will force the levers 3l and 32 apart as soon asthey are released, thereby preventing any jamming action from occurringbetween the Saw-setting device and the blade of the saw.

In the form of my invention as illustrated in Figures 8 to l2 of thedrawings, the head portion is a solidly formed block il having asaw-receiving slot 42 with spaced arms 43 extending outwardly andupwardly therefrom and terminating in a substantially circular Web 44through which extends a screw or bolt i5 carrying the anvil 45 which hasa varying bevel 46 extending circumferentially around its bottom face toprop-l erly accommodate saws having varying shapes and sizes of teeth.The bottom lower portion of the block ii is provided with bifurcatedarms l between which are pivoted the levers 48 and 49 by means of thepin The block 4i is provided with a forwardly positioned recess iii,which eX- tends vertically from the web El and communicates with thesaw-receiving slot l2 through the reduced portion 52. Within the recess5l is a plunger 53 which terminates at one end in a sawclamping block555i disposed within the slot 42. The opposite end i of the plunger 53bears against the face 5S of the lever '33, and adjacent this end isprovided an annular iiange 5l. A relatively weak spring is interposedbetween the said annular flange 5l and the reducedportion 52 functionsto ordinarily maintain the saw-holding block l in a retracted position.The rear of the body 4E is provided with a diagonally disposed slot inwhich is disposed the saw-setting plunger one end of which extendsvthrough the reduced portion into the saw-receiving slot 42 and coactswith the beveled working face 45' of the anvil The opposite end il? ofthe said plunger cooperates with the face G3 of the lever 43 andadjacent the end 52 is an annular flange 54. Disposed between the flange634 and the reduced portion 6i is a relatively strong spring 65, whichfunctions to ordinarily maintain the plunger in a retracted position. Asshown in Figure 8, a plunger is axially movable along a line normal tothe beveled working face of the anvil and the plug -i is normallypositioned closer to the iiat holding face of the anvil than the innerend oi the plunger @d is to the beveled working face thereof.

In the operation of this form of my invention, the saw blade A isinserted in the saw-receiving slot 42 and the anvil. 45 is rotated untilthe proper bevel is positioned in alignment with the sawsetting plunger@it When the levers 48 and 49 are brought together, the inner faces 56and 63 thereof will simultaneously coast with the ends and 62 of theplungersV 5i and lit. However, because of the relatively greaterresistance offered by the spring 55, the handles will act to first bringthe plunger 53 into clamping relation with the saw blade and tothereafter bring the plunger 66 into engagement with the tooth of thesaw.

The forni of my inventionl as illustrated in Figures 13 and 14 issubstantially the same as that illustrated in Figures 8 to 12 of thedrawings. In this form the block 66 is provided with a head portion 61which has a pair of bifurcated arms 68 embracing the upper portion ofthe block 66. Extending upwardly from the bifurcated arms 68 arearcuated extensions 69, which terminate in the substantially circularweb 10. The anvil 'H having a constant beveled edge 12 is secured to theunder side-of the web 1U and Within the saw-receiving slot 13. Theplungers 14 and 'I5 cooperate with the cam faces of the levers 48 and 49in the same manner as illustrated in the second form of my invention.The plunger 'I4 operates at right angles to the anvil 12, while thesaw-setting plunger 15 is provided with a right angularly disposed face15 which operates at right angles to the beveled edge 12 of the anvil1l. Adjacent the lower ends of the plungers 'i4 and 'l5 and within theblock 66 are transversely extending pins TB. A relatively weak spring'i8 is interposed between the pin 16 of the blade holding plunger 14 andthe upper end of the block t5, and a relatively strong spring 11 isinterposed between the pin I6 of the tooth-setting plunger 'l5 and theblock, which springs function to ordinarily maintain the plungers 'i4and 15 in a retracted position.

The operation of this form of my invention is so similar to the secondform that no further explanation is thought to be necessary.

It is to be understood that the forms of my invention, herewith shownand described, are to be taken as preferred examples of the same, andthat vario-us changes in the size, shape and arrangement of parts may beresorted to without departing from the spirit of my invention, or thescope of the appended claim.

Having thus described my invention, I claim:

A` saw set comprising a body having a saw receiving slot, an anvildisposed within said slot and having a at holding face anda beveledtooth setting face, a pair of axiallyvmovable plungers carried by thebody each having a transverse anvil engaging end entering the said sawslot, one of said plungers being arranged to travel normally to theholding face of the anvil and the other of the plungers being arrangedtotravel normally to the beveled tooth-setting face thereof, a pair ofhandle members lying athwart each other and connected to the body by acommon pivot, parts of the handles extending at opposite sides of thepivot and engaging the ends of the plungers remote from the anvil, andspring means arranged within recesses in the body and around the saidplungers, one end of the springs abutting against the body and the otherend thereof contacting parts of the plungers in a manner the plungersnormally retracted, the sai s.v `in coacting with the tooth-settingplunger bein/g relatively stronger than the spring coacting with the sawholding plunger-whereby actuation of the handle members will act Ato rstmove the saw holding plunger into engagement with the holding face ofthe anvil and'to thereafter move the tooth-setting plunger intoengagement with the beveled tooth-setting face thereof.

WALTER R. WILLIAMS, SENIOR.

